Mixing pesticides with pesticides is a more complicated problem. Not all pesticides can be mixed. The following points should be noted in mixing: (1) pH is an important factor affecting the effectiveness of each component. Under alkaline conditions, dithiocarbamate fungicides such as carbamate, pyrethroid vinegar insecticide , thiram, and dexame ring are prone to hydrolysis or complex chemical changes, thereby destroying the original structure. Under acidic conditions, 2,4-D sodium salt, sodium dimethyltetrachloride, amitraz and the like are decomposed, thereby reducing the efficacy. (2) Organic sulfur and organophosphorus pesticides cannot be mixed with pesticides containing copper preparations. For example, a dithiocarbamate fungicide or a 2,4-D salt herbicide mixed with a copper preparation loses its activity due to the complexation of the relevant component with copper ions. (3) Microbial-derived insecticides and systemic organophosphorus pesticides cannot be mixed with fungicides . (4) Mixing of emulsifiable concentrate or wettable powder requires no delamination, oil slick, precipitation, etc. (5) The phytotoxicity of the mixture should be avoided, and the chemical changes of the active ingredients in the mixture composition may cause phytotoxicity. For example, the combination of stone sulphur and Bordeaux mixture can produce harmful copper sulphide, and also increase the content of soluble copper ions; chlorpyrifos and butachlor cannot be mixed with organic phosphorus and carbamate insecticides. (6) Main mixed species: 1 compounding of two or more insecticides. At present, the main application is methyl ester powder, ethyl enemies powder, enemies emulsifiable concentrate, anti-caries, and complex fruits. 2 one or more insecticides are mixed with one or more fungicides, the main forms of which are killing pine, adding rice glutinous rice, dimethoate, methamidophos, and other rice, most of which are present Use the match now. 3 Two or more kinds of fungicides are mixed, the main varieties are accompanied by the species double, metalaxyl manganese zinc, polysulfide suspension, and antibacterial. 4 Mixing two or more herbicides , the main application in China is the use of herbicide plus 2,4-D butyl ester on wheat; atrazine plus durum, atrazine plus 2,4-D butyl ester Cornfield applications, etc. 5 insecticides, fungicides and herbicides mixed. More pesticide knowledge , please pay attention to China Pesticide Network Elevator Door System Parts,Door Machine Frequency Converte,Belt Pulley Suzhou FUJI Precision Elevator Co.,Ltd , https://www.profuji.com
Pay attention to the following items when mixing pesticides